52778827 has 4 divisors (see below), whose sum is σ = 55556680. Its totient is φ = 50000976.

The previous prime is 52778819. The next prime is 52778837. The reversal of 52778827 is 72887725.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52778827 - 2³ = 52778819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52778807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1388898 + ... + 1388935.

It is an arithmetic number, because the mean of its divisors is an integer number (13889170).

Almost surely, 2^52778827 is an apocalyptic number.

52778827 is a deficient number, since it is larger than the sum of its proper divisors (2777853).

52778827 is a wasteful number, since it uses less digits than its factorization.

52778827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777852.

The product of its digits is 439040, while the sum is 46.

The square root of 52778827 is about 7264.9037846347. The cubic root of 52778827 is about 375.1053381113.

The spelling of 52778827 in words is "fifty-two million, seven hundred seventy-eight thousand, eight hundred twenty-seven".